I've looked interesting site w/MTF measurements for various lenses: http://www.photodo.com/nav/prodindex.html I found that average estimation for Pentax 28-200 is 1.7 but for new Tamron 28-200 (super) is much more high - 2.7 ! I'll be very appreciate if somebody clarify this data: does it means that optical quality of Tamron 28-200 super is now much more high than in previous "version" ? Mikhail Kuzminsky - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

